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How much water?

Emily Thomas tests The Food Chain Quiz panel on their water footprint knowledge. How much water do you think it takes to produce an egg or one orange? The answers may just surprise you.

On The Food Chain quiz panel: Βι¶ΉΤΌΕΔ technology correspondent Rory Cellan-Jones; Βι¶ΉΤΌΕΔ Radio 4 correspondent Matthew Price; Jozef Youssef, chef and founder of Kitchen Theory in London; and Βι¶ΉΤΌΕΔ World Service presenter Jackie Leonard.

(Image: Drops of falling water. Credit: Yasuhiro Nakajima/ Getty Images)

2 minutes

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The Food ChainFood Chain: The Quiz

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